
import java.text.SimpleDateFormat;
import java.util.Calendar;

/*6.8.1 Problem
 You need to add or subtract a fixed amount to or from a date.*/
public class AdOrSub {

	public static void main(String[] av) {
		/** Today's date */
		Calendar now = Calendar.getInstance();
		/* Do "DateFormat" using "simple" format. */
		SimpleDateFormat formatter = new SimpleDateFormat(
				"E yyyy.MM.dd 'at' hh:mm:ss a zzz");
		System.out.println("It is now " + formatter.format(now.getTime()));
		now.add(Calendar.DAY_OF_YEAR, -(365 * 2));
		System.out.println("Two years ago was "
				+ formatter.format(now.getTime()));
	}

}
